83 lines
2.0 KiB
C#
83 lines
2.0 KiB
C#
// -----------------------------------------------------------------------------
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// file="Vector.Orthogonalize"
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// Project: StgSharp
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// Copyright (c) Nitload.
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// SPDX-License-Identifier: MIT
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// -----------------------------------------------------------------------------
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using StgSharp.Mathematics.Graphics;
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using System.Numerics;
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namespace StgSharp.Mathematics.Graphics
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{
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public static partial class Linear
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{
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public static Vec4 Orthogonalize(
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this Vec4 vec
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)
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{
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return new Vec4
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{
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vec = Vector4.Normalize(vec.vec)
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};
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}
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public static Vec3 Orthogonalize(
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Vec3 vec
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)
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{
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return new Vec3
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{
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v = Vector3.Normalize(vec.v)
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};
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}
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public static unsafe void Orthogonalize(
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this Vec4 source,
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ref Vec4 target
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)
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{
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Vector4 s = source.vec;
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Vector4 t = target.vec;
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s = Vector4.Normalize(s);
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Vector4 projection = Vector4.Multiply(s, t);
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t -= projection;
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source.vec = s;
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target.vec = t;
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}
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/// <summary>
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/// Orthogonalize two <see cref="Vec3" />s, let their length be 1 and perpendicular to
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/// each other.
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/// </summary>
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/// <param _label="source">
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///
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/// </param>
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/// <param _label="target">
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///
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/// </param>
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public static unsafe void Orthogonalize(
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this Vec3 source,
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ref Vec3 target
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)
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{
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Vector3 s = source.v;
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Vector3 t = target.v;
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s = Vector3.Normalize(s);
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Vector3 projection = Vector3.Dot(t, s) / Vector3.Dot(s, s) * s;
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t -= projection;
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t = Vector3.Normalize(t);
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source.v = s;
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target.v = t;
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}
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}
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}
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